User`s manual

ManualsBrandsCNET ManualsPrint & ScanCWC-854

100

ThinkCore IA241/240 Linux User’s Manual Programmer’s Guide

6-13

printf(“1.Test for Din duration!=0.\n”);

printf(“9.Quit.\n” );

printf(“Please select a choice>“);

scanf(“%d”,&nChoice);

if( nChoice == 9 ){ // Quit

break;

}

else if( nChoice == 0 ){ //test for din duration==0

for ( nDuration=0; nDuration < DURATION_NUM; nDuration++ ) {

// configure the dout frequency. When the timer timeouts, dout_control() will be

called to change the dout state

value.it_value.tv_sec = duration[0][nDuration]/1000;

value.it_value.tv_usec = (duration[0][nDuration]%1000) *1000 ;

value.it_interval = value.it_value;

setitimer(ITIMER_REAL,&value,NULL);

ndin_StateChangeDetected = 0; // reset these counters

ndout_StateChangeDetected = 0;

printf(“DI duration,:0, DO duration:%d\n”,duration[0][nDuration]);

set_din_event(0, low2highevent, DIN_EVENT_LOW_TO_HIGH, 0);

while( ndin_StateChangeDetected < TEST_NUM ) {

pause();

}

printf(“ndin_StateChangeDetected:%d, ndout_StateChangeDetected:%d,\n”,

ndin_StateChangeDetected, ndout_StateChangeDetected);

printf(“loss detection

probability:%f\%,\n”,(ndout_StateChangeDetected-ndin_StateChangeDetected)*100.0/nd

out_StateChangeDetected);

}

}//end of if( nChoice ==0 )

else if( nChoice == 1 ) { //test for din duration!=0

for ( nDuration=0; nDuration < DURATION_NUM; nDuration++ ) {

// configure the dout frequence. when the timer timeout, dout_control() will be

call to change the dout state

value.it_value.tv_sec = duration[1][nDuration]/1000;

value.it_value.tv_usec = ( duration[1][nDuration]%1000 ) *1000 ;

value.it_interval = value.it_value;

setitimer(ITIMER_REAL,&value,NULL);

// Test for: dout kept in the same frequency but din set for different duration

for( i=0; i<DURATION_NUM; i++) {

if( duration[1][i] <= duration[1][nDuration] ) {

// reset these counters

ndin_StateChangeDetected = 0;

ndout_StateChangeDetected = 0;

printf(“DI duration,:%d, DO duration:%d\n”, duration[1][i],

duration[1][nDuration] );

set_din_event(0, low2highevent, DIN_EVENT_LOW_TO_HIGH, duration[1][i]);

while( ndout_StateChangeDetected < TEST_NUM ) {